CVE-2026-34451

MEDIUM

5.4

Descripcion

Claude SDK for TypeScript provides access to the Claude API from server-side TypeScript or JavaScript applications. From version 0.79.0 to before version 0.81.0, the local filesystem memory tool in the Anthropic TypeScript SDK validated model-supplied paths using a string prefix check that did not append a trailing path separator. A model steered by prompt injection could supply a crafted path that resolved to a sibling directory sharing the memory root's name as a prefix, allowing reads and writes outside the sandboxed memory directory. This issue has been patched in version 0.81.0.

Detalles CVE

Puntuacion CVSS v3.15.4

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

Vector de ataqueNETWORK

ComplejidadHIGH

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado3/31/2026

Ultima modificacion4/20/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

anthropic:claude_sdk_for_typescript

Debilidades (CWE)

CWE-22CWE-41

Referencias

https://github.com/anthropics/anthropic-sdk-typescript/commit/0ac69b3438ee9c96b21a7d3c39c07b7cdb6995d9(security-advisories@github.com)

https://github.com/anthropics/anthropic-sdk-typescript/releases/tag/sdk-v0.81.0(security-advisories@github.com)

https://github.com/anthropics/anthropic-sdk-typescript/security/advisories/GHSA-5474-4w2j-mq4c(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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